2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* babel.c: running external programs and redirecting to TRWLayers.
23 * GPSBabel may not be necessary for everything -- for instance,
24 * use a_babel_convert_from_shellcommand with input_file_type == NULL
25 * for an external program that outputs GPX.
36 #ifdef HAVE_SYS_WAIT_H
43 #include <glib/gstdio.h>
45 /* in the future we could have support for other shells (change command strings), or not use a shell at all */
46 #define BASH_LOCATION "/bin/bash"
48 gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, gpointer user_data )
54 gchar *bargs = g_strconcat(babelargs, " -i gpx", NULL);
56 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
57 f = fdopen(fd_src, "w");
58 a_gpx_write_file(vt, f);
61 ret = a_babel_convert_from ( vt, bargs, cb, name_src, user_data );
70 /* Runs args[0] with the arguments and uses the GPX module
71 * to import the GPX data into layer vt. Assumes that upon
72 * running the command, the data will appear in the (usually
73 * temporary) file name_dst.
75 * cb: callback that is run upon new data from STDOUT (?)
76 * (TODO: STDERR would be nice since we usually redirect STDOUT)
77 * user_data: passed along to cb
79 * returns TRUE on success
82 gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_dst, gpointer user_data )
90 PROCESS_INFORMATION pi;
93 ZeroMemory( &si, sizeof(si) );
94 ZeroMemory( &pi, sizeof(pi) );
96 si.dwFlags = STARTF_USESHOWWINDOW;
97 si.wShowWindow = SW_HIDE;
99 cmd = g_strjoinv( " ", args);
100 args2 = g_strsplit(cmd, "\\", 0);
102 cmd = g_strjoinv( "\\\\", args2);
104 args2 = g_strsplit(cmd, "/", 0);
106 cmd = g_strjoinv( "\\\\", args2);
109 NULL, // No module name (use command line).
110 (LPTSTR)cmd, // Command line.
111 NULL, // Process handle not inheritable.
112 NULL, // Thread handle not inheritable.
113 FALSE, // Set handle inheritance to FALSE.
114 0, // No creation flags.
115 NULL, // Use parent's environment block.
116 NULL, // Use parent's starting directory.
117 &si, // Pointer to STARTUPINFO structure.
118 &pi ) // Pointer to PROCESS_INFORMATION structure.
120 g_warning( "CreateProcess failed");
124 WaitForSingleObject(pi.hProcess, INFINITE);
125 WaitForSingleObject(pi.hThread, INFINITE);
127 CloseHandle(pi.hThread);
128 CloseHandle(pi.hProcess);
131 cb(BABEL_DONE, NULL, user_data);
133 f = g_fopen(name_dst, "r");
134 a_gpx_read_file( vt, f );
147 gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_dst, gpointer user_data )
149 gboolean ret = FALSE;
151 GError *error = NULL;
156 if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) {
157 g_warning("Error : %s", error->message);
161 /* No data required */
167 diag = fdopen(babel_stdout, "r");
168 setvbuf(diag, NULL, _IONBF, 0);
170 while (fgets(line, sizeof(line), diag)) {
172 cb(BABEL_DIAG_OUTPUT, line, user_data);
175 cb(BABEL_DONE, NULL, user_data);
178 waitpid(pid, NULL, 0);
179 g_spawn_close_pid(pid);
181 f = g_fopen(name_dst, "r");
183 a_gpx_read_file ( vt, f );
194 gboolean a_babel_convert_from( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, const char *from, gpointer user_data )
199 gboolean ret = FALSE;
202 if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
206 gpsbabel_loc = g_find_program_in_path("gpsbabel");
209 gchar *unbuffer_loc = g_find_program_in_path("unbuffer");
210 gchar **sub_args = g_strsplit(babelargs, " ", 0);
214 args[i++] = unbuffer_loc;
215 args[i++] = gpsbabel_loc;
216 for (j = 0; sub_args[j]; j++) {
217 /* some version of gpsbabel can not take extra blank arg */
218 if (sub_args[j][0] != '\0')
219 args[i++] = sub_args[j];
226 args[i++] = name_dst;
229 ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
231 g_free ( unbuffer_loc );
232 g_strfreev(sub_args);
234 g_warning("gpsbabel not found in PATH");
235 g_free(gpsbabel_loc);
243 /* Runs the input command in a shell (bash) and optionally uses GPSBabel to convert from input_file_type.
244 * If input_file_type is NULL, doesn't use GPSBabel. Input must be GPX (or Geocaching *.loc)
246 * Uses babel_general_convert_from to actually run the command. This function
247 * prepares the command and temporary file, and sets up the arguments for bash.
249 gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_cmd, const char *input_file_type, BabelStatusFunc cb, gpointer user_data )
253 gboolean ret = FALSE;
256 if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
257 gchar *shell_command;
258 if ( input_file_type )
259 shell_command = g_strdup_printf("%s | gpsbabel -i %s -f - -o gpx -F %s", input_cmd, input_file_type, name_dst);
261 shell_command = g_strdup_printf("%s > %s", input_cmd, name_dst);
263 g_debug("%s: %s", __FUNCTION__, shell_command);
266 args = g_malloc(sizeof(gchar *)*4);
267 args[0] = BASH_LOCATION;
269 args[2] = shell_command;
272 ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
274 g_free ( shell_command );
282 gboolean a_babel_convert_from_url ( VikTrwLayer *vt, const char *url, const char *input_type, BabelStatusFunc cb, gpointer user_data )
284 static DownloadOptions options = { FALSE, NULL, 0, a_check_kml_file};
287 gboolean ret = FALSE;
291 g_debug("%s: input_type=%s url=%s", __FUNCTION__, input_type, url);
293 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
297 babelargs = g_strdup_printf(" -i %s", input_type);
299 fetch_ret = a_http_download_get_url(url, "", name_src, &options, NULL);
301 ret = a_babel_convert_from( vt, babelargs, NULL, name_src, NULL);
312 gboolean babel_general_convert_to( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data )
318 if (!a_file_export(vt, name_src, FILE_TYPE_GPX)) {
319 g_warning("%s(): error exporting to %s", __FUNCTION__, name_src);
324 PROCESS_INFORMATION pi;
326 ZeroMemory( &si, sizeof(si) );
327 ZeroMemory( &pi, sizeof(pi) );
329 si.dwFlags = STARTF_USESHOWWINDOW;
330 si.wShowWindow = SW_HIDE;
333 cmd = g_strjoinv( " ", args);
334 args2 = g_strsplit(cmd, "\\", 0);
335 cmd = g_strjoinv( "\\\\", args2);
337 args2 = g_strsplit(cmd, "/", 0);
339 cmd = g_strjoinv( "\\\\", args2);
342 NULL, // No module name (use command line).
343 (LPTSTR)cmd, // Command line.
344 NULL, // Process handle not inheritable.
345 NULL, // Thread handle not inheritable.
346 FALSE, // Set handle inheritance to FALSE.
347 0, // No creation flags.
348 NULL, // Use parent's environment block.
349 NULL, // Use parent's starting directory.
350 &si, // Pointer to STARTUPINFO structure.
351 &pi ) // Pointer to PROCESS_INFORMATION structure.
353 g_warning( "CreateProcess failed" );
358 WaitForSingleObject(pi.hProcess, INFINITE);
359 WaitForSingleObject(pi.hThread, INFINITE);
361 CloseHandle(pi.hThread);
362 CloseHandle(pi.hProcess);
365 cb(BABEL_DONE, NULL, user_data);
378 gboolean babel_general_convert_to( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data )
380 gboolean ret = FALSE;
382 GError *error = NULL;
385 if (!a_file_export(vt, name_src, FILE_TYPE_GPX)) {
386 g_warning("%s(): error exporting to %s", __FUNCTION__, name_src);
390 if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) {
391 g_warning("Error : %s", error->message);
397 diag = fdopen(babel_stdout, "r");
398 setvbuf(diag, NULL, _IONBF, 0);
400 while (fgets(line, sizeof(line), diag)) {
402 cb(BABEL_DIAG_OUTPUT, line, user_data);
405 cb(BABEL_DONE, NULL, user_data);
408 waitpid(pid, NULL, 0);
409 g_spawn_close_pid(pid);
418 gboolean a_babel_convert_to( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, const char *to, gpointer user_data )
423 gboolean ret = FALSE;
426 if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
430 gpsbabel_loc = g_find_program_in_path("gpsbabel");
433 gchar *unbuffer_loc = g_find_program_in_path("unbuffer");
434 gchar **sub_args = g_strsplit(babelargs, " ", 0);
438 args[i++] = unbuffer_loc;
439 args[i++] = gpsbabel_loc;
442 for (j = 0; sub_args[j]; j++)
443 /* some version of gpsbabel can not take extra blank arg */
444 if (sub_args[j][0] != '\0')
445 args[i++] = sub_args[j];
447 args[i++] = name_src;
452 ret = babel_general_convert_to ( vt, cb, args, name_src, user_data );
454 g_free ( unbuffer_loc );
455 g_strfreev(sub_args);
457 g_warning("gpsbabel not found in PATH");
458 g_free(gpsbabel_loc);